Some copies of the “L’aquila dei serpenti” book (It) by Francesco Petretti /map/ may be ordered directly from the author: FRANCESCO PETRETTI – VIA RASELLA 155 – 00187 ROMA Italie (pf@short-toed-eagle.net). The book consists of 270 pages, has comprehensive English summaries of each chapter and English captions of tables and figures. It costs 30,00 euros (postage included) and can be paid by a cheque.